keyword
MENU ▼
Read by QxMD icon Read
search

conversive

keyword
https://www.readbyqxmd.com/read/28931209/process-simulation-of-ethanol-production-from-biomass-gasification-and-syngas-fermentation
#1
Oscar Pardo-Planas, Hasan K Atiyeh, John R Phillips, Clint P Aichele, Sayeed Mohammad
The hybrid gasification-syngas fermentation platform can produce more bioethanol utilizing all biomass components compared to the biochemical conversion technology. Syngas fermentation operates at mild temperatures and pressures and avoids using expensive pretreatment processes and enzymes. This study presents a new process simulation model developed with Aspen Plus® of a biorefinery based on a hybrid conversion technology for the production of anhydrous ethanol using 1200tons per day (wb) of switchgrass. The simulation model consists of three modules: gasification, fermentation, and product recovery...
September 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28931174/improvement-of-radiological-teaching-effects-of-focusing-of-learning-targets-and-increased-consideration-of-learning-theory-knowledge
#2
Stefan Wirth, York-Alexander William, Marco Paolini, Kathrin Wirth, Daniel Maxien, Maximilian Reiser, Martin R Fischer
Purpose Based on evaluation and examination results of students, a necessity for improvement of so far purely instructor-based radiological teaching at the local institution was determined. Aim of our study was to use one out of eight seminars to exemplify adaptation of the teaching concept according to learning theory knowledge, to determine the resulting effects and to interpret them. Materials and methods The institutional review board approved the prospective study of the seminar conversion, which was performed after the end of the winter semester 2015/2016...
September 20, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28931117/migrant-tuberculosis-patient-needs-and-health-system-response-along-the-thailand-myanmar-border
#3
Naomi Tschirhart, Francois Nosten, Angel M Foster
This article aims to identify how the health system in Tak province, Thailand has responded to migrants' barriers to tuberculosis (TB) treatment. Our qualitatively driven multi-methods project utilized focus group discussions, key informant interviews, and a survey of community health volunteers to collect data in 2014 from multiple perspectives. Migrants identified legal status and transportation difficulties as the primary barriers to seeking TB treatment. Lack of financial resources and difficulties locating appropriate and affordable health services in other Thai provinces or across the border in Myanmar further contributed to migrants' challenges...
October 1, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28931064/dynamics-of-soil-organic-carbon-mineralization-in-tea-plantations-converted-from-farmland-at-western-sichuan-china
#4
Renhuan Zhu, Zicheng Zheng, Tingxuan Li, Xizhou Zhang, Shuqin He, Yongdong Wang, Tao Liu, Wei Li
Climate warming and land use change are some of the drivers affecting soil organic carbon (SOC) dynamics. The Grain for Green Project, local natural resources, and geographical conditions have resulted in farmland conversion into tea plantations in the hilly region of Western Sichuan. However, the effect of such land conversion on SOC mineralization remains unknown. In order to understand the temperature sensitivity of SOC decomposition in tea plantations converted from farmland, this study considered the different years (i...
2017: PloS One
https://www.readbyqxmd.com/read/28931043/retrograde-pyelography-predicts-retrograde-ureteral-stenting-failure-and-reduces-unnecessary-stenting-trials-in-patients-with-advanced-non-urological-malignant-ureteral-obstruction
#5
Sung Han Kim, Boram Park, Jungnam Joo, Jae Young Joung, Ho Kyung Seo, Jinsoo Chung, Kang Hyun Lee
OBJECTIVE: To evaluate predictive factors for retrograde ureteral stent failure in patients with non-urological malignant ureteral obstruction. MATERIALS AND METHODS: Between 2005 and 2014, medical records of 284 malignant ureteral obstruction patients with 712 retrograde ureteral stent trials including 63 (22.2%) having bilateral malignant ureteral obstruction were retrospectively reviewed. Retrograde ureteral stent failure was defined as the inability to place ureteral stents by cystoscopy, recurrent stent obstruction within one month, or non-relief of azotemia within one week from the prior retrograde ureteral stent...
2017: PloS One
https://www.readbyqxmd.com/read/28930986/low-pressure-vapor-assisted-solution-process-for-tunable-band-gap-pinhole-free-methylammonium-lead-halide-perovskite-films
#6
Carolin M Sutter-Fella, Yanbo Li, Nicola Cefarin, Aya Buckley, Quynh Phuong Ngo, Ali Javey, Ian D Sharp, Francesca M Toma
Organo-lead halide perovskites have recently attracted great interest for potential applications in thin-film photovoltaics and optoelectronics. Herein, we present a protocol for the fabrication of this material via the low-pressure vapor assisted solution process (LP-VASP) method, which yields ~19% power conversion efficiency in planar heterojunction perovskite solar cells. First, we report the synthesis of methylammonium iodide (CH3NH3I) and methylammonium bromide (CH3NH3Br) from methylamine and the corresponding halide acid (HI or HBr)...
September 8, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28930765/encouraging-reflexivity-in-a-residency-leadership-development-program-expanding-outside-the-competency-approach
#7
Justin T Clapp, Emily K B Gordon, Dimitry J Baranov, Beulah Trey, Felice Y Tilin, Lee A Fleisher
PROBLEM: While leadership development is increasingly a goal of academic medicine, it is typically framed as competency acquisition, which can limit its focus to a circumscribed set of social behaviors. This orientation may also reinforce the cultural characteristics of academic medicine that can make effective leadership difficult, rather than training leaders capable of examining and changing this culture. Expanding leadership development so it promotes social reflexivity presents a way to bolster some of the weaknesses of the competency paradigm...
September 14, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28930742/uk-renal-registry-19th-annual-report-appendix-j-laboratory-conversion-factors
#8
(no author information available yet)
No abstract text is available yet for this article.
2017: Nephron
https://www.readbyqxmd.com/read/28930719/vascular-access-placement-order-and-outcomes-in-hemodialysis-patients-a-longitudinal-study
#9
Mariana Murea, W Mark Brown, Jasmin Divers, Shahriar Moossavi, Todd W Robinson, Benjamin Bagwell, John M Burkart, Barry I Freedman
BACKGROUND: Arteriovenous accesses (AVA) in patients performing hemodialysis (HD) are labeled "permanent" for AV fistulas (AVF) or grafts (AVG) and "temporary" for tunneled central venous catheters (TCVC). Durability and outcomes of permanent vascular accesses based on the sequence in which they were placed or used receives little attention. This study analyzed longitudinal transitions between TCVC-based and AVA-based HD outcomes according to the order of placement. METHODS: All 391 patients initiating chronic HD via a TCVC between 2012 and 2013 at 12 outpatient academic dialysis units were included in this study...
September 21, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28930611/biomass-breakdown-a-review-on-pretreatment-instrumentations-and-methods
#10
Preeti Vyas, Ashwani Kumar, Suren Singh
Enzymatic breakdown of lignocellulosic biomass for liquid fuel production is a viable alternative to fossil fuels, due to its renewable and environmental friendly nature. Naturally, plants protect their cell wall polysaccharides by giving limited access to the cell wall degrading enzymes. Lignocellulose breakdown requires proper pretreatments that disrupt the close inter-component association between the constituents of the plant cell wall. For efficient biomass conversion, the choice of the correct pretreatment is important for removing the barriers to enhance access to microbial enzymes...
January 1, 2018: Frontiers in Bioscience (Elite Edition)
https://www.readbyqxmd.com/read/28930599/dissection-of-prodromal-alzheimer-s-disease
#11
Can Sheng, Yue Huang, Ying Han
Pathophysiological changes of Alzheimer's Disease (AD) begin decades before clinical symptoms become apparent, providing an important window for early diagnosis and intervention. Prodromal stage of AD, a great opportunity for effective treatment and postponing the disease onset, has drawn extensive attention. The application of different biomarkers including neuroimaging, biochemical substances and genes makes AD-related pathology detectable in vivo and exploring novel biomarkers with relatively non-invasive and low cost has intrigued a wide range of interests...
January 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28930473/molecular-insights-into-human-serum-albumin-as-a-receptor-of-amyloid-%C3%AE-in-the-extracellular-region
#12
Tae Su Choi, Hyuck Jin Lee, Jong Yoon Han, Mi Hee Lim, Hugh I Kim
Regulation of amyloid-β (Aβ) aggregation by metal ions and proteins is essential for understanding the pathology of Alzheimer's disease (AD). Human serum albumin (HSA), a regulator of metal and protein transportation, can modulate metal-Aβ interactions and Aβ aggregation in human fluid; however, the molecular mechanisms for such activities remain unclear. Herein, we report the molecular-level complexation between Zn(II), Cu(II), Aβ, and HSA, which is able to alter the aggregation and cytotoxicity of Aβ peptides and induce their cellular transportation...
September 20, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28930435/new-triplet-sensitization-routes-for-photon-upconversion-thermally-activated-delayed-fluorescence-molecules-inorganic-nanocrystals-and-singlet-to-triplet-absorption
#13
Nobuhiro Yanai, Nobuo Kimizuka
Photon upconversion based on triplet-triplet annihilation (TTA-UC) has attracted much interest because of its possible applications to renewable energy production and biological fields. In particular, the UC of near-infrared (NIR) light to visible (vis) light is imperative to overcome the Shockley-Queisser limit of single-junction photovoltaic cells, and the efficiency of photocatalytic hydrogen production from water can also be improved with the aid of vis-to-ultraviolet (UV) UC. However, both processes have met limitations in the wavelength range, efficiency, and sensitivity for weak incident light...
September 20, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28930430/novel-strategies-for-the-production-of-fuels-lubricants-and-chemicals-from-biomass
#14
Sankaranarayanapillai Shylesh, Amit A Gokhale, Christopher R Ho, Alexis T Bell
Growing concern with the environmental impact of CO2 emissions produced by combustion of fuels derived from fossil-based carbon resources has stimulated the search for renewable sources of carbon. Much of this focus has been on the development of methods for producing transportation fuels, the major source of CO2 emissions today, and to a lesser extent on the production of lubricants and chemicals. First-generation biofuels such as bioethanol, produced by the fermentation of sugar cane- or corn-based sugars, and biodiesel, produced by the transesterification reaction of triglycerides with alcohols to form a mixture of long-chain fatty esters, can be blended with traditional fuels in limited amounts and also arise in food versus fuel debates...
September 20, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28930352/liquid-crystal-order-during-synthesis-affects-main-chain-liquid-crystal-elastomer-behavior
#15
N A Traugutt, R H Volpe, M S Bollinger, M O Saed, A H Torbati, K Yu, Natalia Dadivanyan, C M Yakacki
This study presents the first direct comparison of the influence of liquid-crystal order during synthesis on the thermo-mechanical behaviors of main-chain liquid-crystal elastomers (LCEs) in thiol-acrylate networks. Six polydomain nematic elastomer (PNE) chemistries were compared directly by synthesizing with the mesogens in either an isotropic state (i-PNE) or a nematic state (n-PNE). The i-PNE networks were created in the presence of solvent, which disrupted any liquid-crystal order during network formation...
September 20, 2017: Soft Matter
https://www.readbyqxmd.com/read/28930346/one-pot-solution-synthesis-of-shape-controlled-copper-selenide-nanostructures-and-their-potential-applications-in-photocatalysis-and-photothermal-therapy
#16
Xianwen Wang, Zhaohua Miao, Yan Ma, Huajian Chen, Haisheng Qian, Zhengbao Zha
Developing a facile and reliable method for the fabrication of transition metal chalcogenides is a vital and endless pursuit of scientific and technological disciplines. In this work, we develop a one-pot solution approach to obtain copper selenide nanostructures with different morphologies and crystal structures (Cu2Se nanoparticles, CuSe nanoplates and CuSe2 nanosheets). In comparison to previously reported methods, our method did not use expensive and very toxic raw materials. After detailed studies of reaction conditions, including temperature, reaction time, and feeding amount of surfactants and precursors, we found that the feeding ratio of precursors played a key role in the crystal structures and morphologies of the final products...
September 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28930186/the-effect-of-copper-addition-on-the-activity-and-stability-of-iron-based-co%C3%A2-hydrogenation-catalysts
#17
Matthew J Bradley, Ramagopal Ananth, Heather D Willauer, Jeffrey W Baldwin, Dennis R Hardy, Frederick W Williams
Iron-based CO₂ catalysts have shown promise as a viable route to the production of olefins from CO₂ and H₂ gas. However, these catalysts can suffer from low conversion and high methane selectivity, as well as being particularly vulnerable to water produced during the reaction. In an effort to improve both the activity and durability of iron-based catalysts on an alumina support, copper (10-30%) has been added to the catalyst matrix. In this paper, the effects of copper addition on the catalyst activity and morphology are examined...
September 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28930182/microbial-community-structure-and-functions-in-ethanol-fed-sulfate-removal-bioreactors-for-treatment-of-mine-water
#18
Malin Bomberg, Jarno Mäkinen, Marja Salo, Mona Arnold
Sulfate-rich mine water must be treated before it is released into natural water bodies. We tested ethanol as substrate in bioreactors designed for biological sulfate removal from mine water containing up to 9 g L(-1) sulfate, using granular sludge from an industrial waste water treatment plant as inoculum. The pH, redox potential, and sulfate and sulfide concentrations were measured twice a week over a maximum of 171 days. The microbial communities in the bioreactors were characterized by qPCR and high throughput amplicon sequencing...
September 20, 2017: Microorganisms
https://www.readbyqxmd.com/read/28930069/initial-elevations-in-glutamate-and-dopamine-neurotransmission-decline-with-age-as-does-exploratory-behavior-in-lrrk2-g2019s-knock-in-mice
#19
Mattia Volta, Dayne A Beccano-Kelly, Sarah A Paschall, Stefano Cataldi, Sarah E MacIsaac, Naila Kuhlmann, Chelsie A Kadgien, Igor Tatarnikov, Jesse Fox, Jaskaran Khinda, Emma Mitchell, Sabrina Bergeron, Heather Melrose, Matthew J Farrer, Austen J Milnerwood
LRRK2 mutations produce end-stage Parkinson's disease (PD) with reduced nigrostriatal dopamine. Conversely, asymptomatic carriers have increased dopamine turnover and altered brain connectivity. LRRK2 pathophysiology remains unclear, but reduced dopamine and mitochondrial abnormalities occur in aged mutant knock-in (GKI) mice. Conversely, cultured GKI neurons exhibit increased synaptic transmission. We assessed behavior and synaptic glutamate and dopamine function across ages. Young GKI exhibit more vertical exploration, elevated glutamate and dopamine transmission, and aberrant D2-receptor responses...
September 20, 2017: ELife
https://www.readbyqxmd.com/read/28929757/high-pressure-processing-of-broccoli-sprouts-influence-on-bioactivation-of-glucosinolates-to-isothiocyanates
#20
Anna Westphal, Kenneth M Riedl, Jessica L Cooperstone, Shreya Kamat, V M Balasubramaniam, Steven J Schwartz, Volker Böhm
Effects of high-pressure processing (HPP, 100-600 MPa for 3 min at 30 °C) on the glucosinolate content, conversion to isothiocyanates, and color changes during storage in fresh broccoli sprouts were investigated. A mild heat treatment (60 °C) and boiling (100 °C) were used as positive and negative controls, respectively. Glucosinolates were quantified using liquid chromatography-mass spectrometry, and isothiocyanates were quantified using high-performance liquid chromatography-photodiode array detection...
September 20, 2017: Journal of Agricultural and Food Chemistry
keyword
keyword
108509
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"